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Major Features

There 13 features and fixes in this release. The most notable are:

  • Added next file formats support:
    • DGN (V7) (MicroStation design file)
    • DWF (AutoCAD Design Web Format)
  •  Extended support of DefaultFontName setting on
    • Rendering PDF documents into PDF and HTML
    • Rendering MS Project documents into PDF
    • Rendering ODG, SVG and MetaFile Images
  • Added feature to set page size when rendering Email messages as PDF and image
  • Added feature which allows changing labels when rendering Email messages

Full List of Issues Covering all Changes in this Release

VIEWERCLOUD-175Add ISFF-based DGN (V7) file format supportNew Feature
VIEWERCLOUD-171Extend support for DefaultFontName setting to PDF documents when rendering into PDFNew Feature
VIEWERCLOUD-170Render CAD documents by specifying coordinatesNew Feature
VIEWERCLOUD-169Add DWF file format supportNew Feature
VIEWERCLOUD-167Extend support for DefaultFontName option for MS Project documents when rendering into PDFNew Feature
VIEWERCLOUD-165Add support for rendering password protected ODT and OTT formatsNew Feature
VIEWERCLOUD-164Changing language for header of emailsNew Feature
VIEWERCLOUD-163Setting page size when rendering Email documents as PDF and imageNew Feature
VIEWERCLOUD-177Improve compression for rendering into HTML with EnableMinification settingImprovement
VIEWERCLOUD-176Extend DefaultFontName setting support for ODG, SVG and MetaFile ImagesImprovement
VIEWERCLOUD-173Extend support for DefaultFontName option for CAD documentsImprovement
VIEWERCLOUD-172Eliminate the gap between list of tasks and footer when rendering MS Project documentsImprovement
VIEWERCLOUD-145Extend support for DefaultFontName setting to PDF documents when rendering into HTMLImprovement

Public API and Backward Incompatible Changes

Changing language for header of emails

When rendering email messages by default Viewer uses English languge to render field labels such as (From, To, Subject etc.). To change field labels you can set FieldLabels on EmailOptions class.

How to change field labels
How to change field labels

  Viewer supports following field labels:

Anniversary Anniversary
Bcc Bcc
Business Address Business Address
Business Fax Business Fax



Email Display As

Email Display As


Email2 Display AsEmail2 Display As
Email3 Email3
Email3 Display AsEmail3 Display As
First NameFirst Name
Full NameFull Name


Home AddressHome Address
Job TitleJob Title
Last NameLast Name
Middle NameMiddle Name
Other AddressOther Address
Recurrence PatternRecurrence Pattern
Required AttendeesRequired Attendees
Show Time AsShow Time As
User Field 1User Field 1
User Field 2User Field 2
User Field 3User Field 3
User Field 4User Field 4

Rendering by coordinates or Tiled rendering




Tiled rendering or (rendering by coordinates) is the process of rendering CAD documents (into an image, HTML or PDF) by dividing into square parts and rendering each part (or tile), separately. Since the version 18.7 tiled rendering is available for rendering into an image and HTML for DWG file format. Generally DWG documents are divided into pages by Model and Layouts, but when the tiled rendering is enabled, only the Model is rendered, and every tile composes a separate page. 


How to render by coordinates


Before you start rendering by coordinates, it is recommended to obtain the overall width and height of the document with help of document info methods as shown in example below. After you know the width and height, determine the starting point X and Y coordinates and the width with the height of the tile (region you want to render). Then add tiles to CadOptions.Tiles as shown in example below. Coordinates start from bottom left corner of the drawing and have only positive values as shown in sample picture below. 


Overall width of the document is 650px height and 750px width. The selected tile starts at coordinate X: 250 and Y: 100 and has a width 150px, height: 200px 



You can add as many tiles as you need, the following example demonstrates how to render DWG drawing into an image by dividing into four equal parts. 


Rendering by coordinates

 Setting default font when rendering PDF documents into HTML

Since the version 18.7, it is possible to set default font when rendering PDF document into HTML. This setting may be useful when you would like to specify which font should be used in case PDF document missing some font(s).

How to set the output page size
Set default font when rendering PDF document into HTML


Setting page size when rendering Email documents as PDF and image







Since the version 18.7, it is possible to set output page size for rendering Email documents into PDF and images. To enable this feature, please set the PageSize property of the EmailOptions class as shown in example below. Please note, that for rendering into HTML the whole email message is rendered into one responsive HTML page and this new option will not influence the rendering. 


How to set the output page size
Set page size when rendering into image
Set page size when rendering into PDF

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